Anupam Mazumdar is a theoretical physicist at the University of Groningen[1] specializing in cosmology and quantum gravity.
Anupam Mazumdar | |
|---|---|
| Born | Anupam Mazumdar |
| Awards | JSPS Award, Japan, Inlaks Fellowship, India |
| Scientific career | |
| Fields | Physics, Cosmology, Inflation (Cosmology), Quantum Gravity |
| Institutions | University of Sussex, Imperial College, London, ICTP, McGill University, Niels Bohr Institute, Lancaster University, University of Groningen |
| Doctoral advisor | Andrew R. Liddle |
| Website | http://www.rug.nl/staff/anupam.mazumdar/ |
Together with Sougato Bose, Mazumdar has proposed a bonafide test for the existence of the graviton in a table-top experiment, via witnessing gravitationally-mediated entanglement between two macroscopic superpositions of masses.[2] A positive test of this phenomenon would establish experimentally that gravity is quantum mechanical in nature, and establish the existence of the graviton.[3] The test crucially depends on the quantum nature of gravity, creating non-classical states of matter, and local operation and quantum communication (LOQC).[4]
He has previously been affiliated to the Higgs Centre, at the University of Edinburgh,[5] and the Discovery Center at the Niels Bohr Institute, Copenhagen.[6]
His work has focused on multi field theories of inflation, such as assisted inflation,[7] visible sector inflation such as MSSM inflation.[8] He has worked on the ghost-free and singularity-free construction of infinite derivative theories of gravity,[9] which can potentially resolve the Schwarzschild singularity for mini black holes, yielding a non-singular compact object without event horizon, and cosmological singularities. He has also conjectured with Koshelev that astrophysical black hole has no curvature singularity and devoid of an event horizon,[10] in infinite derivative theories of gravity, because the scale of non-locality in gravitational interaction can engulf the gravitational radius of the compact object. At time scales and at distances below the effective scale of non-locality the gravitational interaction weakens sufficiently enough that a finite pressure from normal matter satisfying null, strong and weak energy conditions can avoid forming blackhole with event horizon and cosmological singularities.
References
edit- ^ "Anupam Mazumdar - Research database - University of Groningen". www.rug.nl. Retrieved 2018-02-25.
- ^ Sougato Bose, Anupam Mazumdar, Gavin Morley (et.al),(Phys. Rev. Lett. 119, no. 24, 240401 (2017) doi:10.1103/PhysRevLett.119.240401, `Spin Entanglement Witness for Quantum Gravity,' American Physical Society
- ^ Danielson, Daine L.; Satishchandran, Gautam; Wald, Robert M. (2022-04-05). "Gravitationally mediated entanglement: Newtonian field versus gravitons". Physical Review D. 105 (8): 086001. arXiv:2112.10798. doi:10.1103/PhysRevD.105.086001. S2CID 245353748.
- ^ Ryan J. Marshman, Anupam Mazumdar, and Sougato Bose, (Phys.Rev.A 101 (2020) 5, 052110) doi:10.1103/PhysRevA.101.052110,'Locality and entanglement in table-top testing of the quantum nature of linearized gravity'American Physical Society
- ^ "Higgs Centre for Fundamental Physics". University of Edinburgh. Archived from the original on 19 June 2015. Retrieved 19 June 2015.
- ^ "Discovery Centre, Niels Bohr Institute - Dr Anupam Mazumdar". Niels Bohr Institute. Retrieved 19 June 2015.
- ^ Andrew R. Liddle, Anupam Mazumdar, and Franz E. Schunck (26 August 1998) "Assisted inflation". American Physical Society
- ^ Rouzbeh Allahverdi, Kari Enqvist, Juan Garcia-Bellido, and Anupam Mazumdar (9 November 2006). "Gauge-invariant inflaton in the minimal supersymmetric standard model". American Physical Society
- ^ Tirthabir Biswas, Erik Gerwick, Tomi Koivisto, and Anupam Mazumdar (19 January 2012). "Towards Singularity- and Ghost-Free Theories of Gravity". American Physical Society
- ^ Alexey Koshelev and Anupam Mazumdar (31 October 2017)massive compact objects without event horizon exist in infinite derivative gravity?[permanent dead link] American Physical Society